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HP-UX 11i Version 3: February 2007
uname — display information about computer system; set node name (system name)
In the first form above, the uname command displays selected information about the current computer system, derived from the utsname structure (see uname(2)).
In the second form, uname sets the node name (system name) that is used in the utsname structure.
uname recognizes the options listed below. If you enter several options, the output is always in the order shown for the -a option.
When you execute the command uname -a, it produces output like the following:
HP-UX myhost A.09.01 C 9000/750 2015986034 32-user license
The displayed fields are interpreted as follows:
Many types of networking services are supported on HP-UX, each of which uses a separately assigned system name and naming convention. To ensure predictable system behavior, it is essential that system names (also called host names or node names) be assigned in such a manner that they do not create conflicts when the various networking facilities interact with each other.
The system does not rely on a single system name in a specific location, partly because different services use dissimilar name formats as explained below. The hostname and uname commands assign system names as follows:
where sys represents the assigned system name. It is strongly recommended that sys be identical for all commands and locations and that the optional .x.y.z... follow the specified notation for the particular ARPA/NFS environment.
Internet names are also frequently called host names or domain names (which are different from NFS domain names). Refer to hostname(5) for more information about Internet naming conventions.
Whenever the system name is changed in any file or by the use of any of the above commands, it should also be changed in all other locations as well. Other files or commands in addition to those above (such as /etc/uucp/Permissions if used to circumvent uname, for example) may contain or alter system names. To ensure correct operation, they should also use the same system name.
System names are normally assigned by the /sbin/init.d/hostname script at start-up, and should not be altered elsewhere.
Setting a nodename of more than 8 bytes is possible only with the appropriate configuration options enabled. It is strongly recommended that all related documentation be completely understood before setting a larger node name. A node name larger than 8 bytes can cause anomalous or incorrect behavior in applications which use the uname command or the uname() system function to access the name.